Notes 
Only Google Pixel devices are supported, new models are recommended. Source.
Reviewed by Marco Wollank
GrapheneOS
grapheneos.org 4.9 (17)
Rate GrapheneOS: No account needed
Threat level
Hardened
A hardened pick. Worth the effort once you have chosen to shrink your footprint on purpose. Enough for most people. Threat levels
Our take
Pixel-only and unapologetic about it, because tying itself to verified-boot hardware is exactly how it gets to make stronger guarantees than rivals that chase device breadth. That’s the trade: you buy into Google’s phone hardware to escape Google’s software, and a sandboxed Play layer keeps real apps working. For a high but practical threat model it’s the most credible mobile OS going. Skip it only if you refuse to own a Pixel.
GitHub at a glance
GrapheneOS/platform_manifest androidgrapheneosprivacysecurity
Stars
586
+3 this week
Forks
241
40 watching
Last commit
today
healthy
Star history
Commits, last 26 weeks
38 commits, active 11 of 26 weeks
78 contributors since Dec 2015
Updated daily from the GitHub API. Star tracking since Jun 10, 2026.
Website at a glance
grapheneos.org
A+ score 160
Strong website security headers
Graded by Mozilla HTTP Observatory, tested 1d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
GrapheneOS alternatives
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Ubuntu Touch List of supported devices .